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samples: code_relocation_nocopy: add stm32f769i_disco board

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This board has memory-mapped QSPI flash.

Signed-off-by: Armin Brauns <armin.brauns@embedded-solutions.at>
This commit is contained in:
Armin Brauns 2024-05-03 15:11:58 +00:00 • committed by Carles Cufí
commit e7a53cf03b
4 changed files with 27 additions and 8 deletions
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25
samples/application_development/code_relocation_nocopy/README.rst
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@ -10,18 +10,14 @@ using a custom linker script.
Differently from the code relocation sample, this sample is relocating the
content of the ext_code.c file to a different FLASH section and the code is XIP
directly from there without the need to copy / relocate the code.
directly from there without the need to copy / relocate the code. All other code
(e.g. main(), Zephyr kernel) stays in the internal flash.
nRF5340 DK platform instructions
********************************
The nRF5340 DK has a 64 Mb external flash memory supporting Quad SPI. It is
possible to do XIP from the external flash memory.
The external flash memory is mapped to 0x10000000.
In this sample we relocate some of the code to the external flash memory with
the remaining Zephyr kernel in the internal flash.
mapped to 0x10000000.
To build and flash the application (including the external memory part):
@ -31,7 +27,20 @@ To build and flash the application (including the external memory part):
:goals: build flash
:compact:
Execution output:
STM32F769I-Discovery platform instructions
******************************************
The stm32f769i_disco has 64MB of external flash attached via QSPI. It is mapped
to 0x90000000.
.. zephyr-app-commands::
:zephyr-app: samples/application_development/code_relocation_nocopy
:board: stm32f769i_disco
:goals: build flash
:compact:
Execution output
****************
.. code-block:: console

2
samples/application_development/code_relocation_nocopy/boards/stm32f769i_disco.conf Normal file
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@ -0,0 +1,2 @@
CONFIG_FLASH=y
CONFIG_STM32_MEMMAP=y

7
samples/application_development/code_relocation_nocopy/linker_arm_nocopy.ld
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@ -26,6 +26,13 @@
#define EXTFLASH_SIZE DT_PROP_OR(EXTFLASH_NODE, size_in_bytes, \
DT_PROP(EXTFLASH_NODE, size) / 8)
#elif defined(CONFIG_STM32_MEMMAP) && DT_NODE_EXISTS(DT_INST(0, st_stm32_qspi_nor))
/* On stm32 QSPI, external flash is mapped in XIP region at address given by the reg property. */
#define EXTFLASH_NODE DT_INST(0, st_stm32_qspi_nor)
#define EXTFLASH_ADDR DT_REG_ADDR(DT_INST(0, st_stm32_qspi_nor))
#define EXTFLASH_SIZE DT_REG_ADDR_BY_IDX(DT_INST(0, st_stm32_qspi_nor), 1)
#else
/*

1
samples/application_development/code_relocation_nocopy/sample.yaml
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@ -6,6 +6,7 @@ tests:
platform_allow:
- qemu_cortex_m3
- nrf5340dk/nrf5340/cpuapp
- stm32f769i_disco
integration_platforms:
- qemu_cortex_m3
tags: linker